/*
 * Copyright (c) 1998, 2003, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 */

package javax.swing.plaf.metal;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.border.*;
import javax.swing.plaf.*;
import java.beans.*;
import java.util.EventListener;
import java.io.Serializable;
import javax.swing.plaf.basic.BasicDesktopIconUI;

/**
 * Metal desktop icon.
 *
 * @author Steve Wilson
 */
public class MetalDesktopIconUI extends BasicDesktopIconUI {

  JButton button;
  JLabel label;
  TitleListener titleListener;
  private int width;

  public static ComponentUI createUI(JComponent c) {
    return new MetalDesktopIconUI();
  }

  public MetalDesktopIconUI() {
  }

  protected void installDefaults() {
    super.installDefaults();
    LookAndFeel
        .installColorsAndFont(desktopIcon, "DesktopIcon.background", "DesktopIcon.foreground",
            "DesktopIcon.font");
    width = UIManager.getInt("DesktopIcon.width");
  }

  protected void installComponents() {
    frame = desktopIcon.getInternalFrame();
    Icon icon = frame.getFrameIcon();
    String title = frame.getTitle();

    button = new JButton(title, icon);
    button.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        deiconize();
      }
    });
    button.setFont(desktopIcon.getFont());
    button.setBackground(desktopIcon.getBackground());
    button.setForeground(desktopIcon.getForeground());

    int buttonH = button.getPreferredSize().height;

    Icon drag = new MetalBumps((buttonH / 3), buttonH,
        MetalLookAndFeel.getControlHighlight(),
        MetalLookAndFeel.getControlDarkShadow(),
        MetalLookAndFeel.getControl());
    label = new JLabel(drag);

    label.setBorder(new MatteBorder(0, 2, 0, 1, desktopIcon.getBackground()));
    desktopIcon.setLayout(new BorderLayout(2, 0));
    desktopIcon.add(button, BorderLayout.CENTER);
    desktopIcon.add(label, BorderLayout.WEST);
  }

  protected void uninstallComponents() {
    desktopIcon.setLayout(null);
    desktopIcon.remove(label);
    desktopIcon.remove(button);
    button = null;
    frame = null;
  }

  protected void installListeners() {
    super.installListeners();
    desktopIcon.getInternalFrame().addPropertyChangeListener(
        titleListener = new TitleListener());
  }

  protected void uninstallListeners() {
    desktopIcon.getInternalFrame().removePropertyChangeListener(
        titleListener);
    titleListener = null;
    super.uninstallListeners();
  }


  public Dimension getPreferredSize(JComponent c) {
    // Metal desktop icons can not be resized.  Their dimensions should
    // always be the minimum size.  See getMinimumSize(JComponent c).
    return getMinimumSize(c);
  }

  public Dimension getMinimumSize(JComponent c) {
    // For the metal desktop icon we will use the layout maanger to
    // determine the correct height of the component, but we want to keep
    // the width consistent according to the jlf spec.
    return new Dimension(width,
        desktopIcon.getLayout().minimumLayoutSize(desktopIcon).height);
  }

  public Dimension getMaximumSize(JComponent c) {
    // Metal desktop icons can not be resized.  Their dimensions should
    // always be the minimum size.  See getMinimumSize(JComponent c).
    return getMinimumSize(c);
  }

  class TitleListener implements PropertyChangeListener {

    public void propertyChange(PropertyChangeEvent e) {
      if (e.getPropertyName().equals("title")) {
        button.setText((String) e.getNewValue());
      }

      if (e.getPropertyName().equals("frameIcon")) {
        button.setIcon((Icon) e.getNewValue());
      }
    }
  }
}
